Tooth for excavator buckets or shovels.



M J. WOZNAGK:

TOOTH FOB EXGAVATOR BUGKETS 0R SHOVELS.

APPLICATION FILED DEC. 29, 1911.

1,078,184, I Patented Nov. 11, 1913.

0 4 5 y W J Suva/Mom wmmo Q Mb/k/JWa /mck attomww v "To all whom it may concern:

UNITED sTATEs PATENT OFFICE.

MICHEL J. wozNAeK, OF SEATTLE, WASHINGTON;

TOOTH run ExcAvAToa nucxn'rs on SHOVELS.

- Be it known that I, MICHEL J. Woz'NAoK, a citizen of the Unit-ed States of America, and a resident of the city of Seattle, in'the county of King and State of Washington, have invented certain new and useful Improvements in Teeth for Excavator'Bilckets or Shovels, of which the following is a specification.

My invention has for one of its objects to provide a removable point which can be firmly seated and held on the body portion proper of the. tooth.

A further object resides in the provision of guard means arranged onthe shanks of the teeth to guard against lodgment of the excavated material in the bucket or shovel between said shanks.

-Other objects will be set forth as my de-.

scription progresses and those features of construction, arrangements and combinations of parts on which I desire protection, succinctly defined in my annexed claims.

Referring to the accompanying drawing, illustrating my invention in such "form as now preferred by me, and wherein like numerals of reference indicate like parts throughout: Figure 1 is a top plan of the tooth constructed in accordance with my invention. Fig. 2 is a side elevation thereof, the same being applied as in use, a portion of the tooth being broken away. Fig. 3 is an elevation of the point, and Fig. 4 is a fragmentary plan of a bucket or shovel equipped with my improved teeth.

Referring to the drawing by numerals of reference, 1 indicates a shank and 2 an underlying arm, the latter being spaced from shank l for reception of the forward edge portion of the shovel 3, as indicated in Fig. 2.

Reference numeral 3' indicates a forwardly projecting nose or body of the tooth, the same having its upper face inclined downwardly in a forward direction and formed with a longitudinal seat 4 which extends from its forward edge to a point to the rear of the forward edge of the shovel. This seat is adapted for reception of the shank 5 of the removable point 6, which shank has its upper face flush with the adjacent face of body 3, and is preferably tapered in' a rearward direction.

Reference numeral 7 indicates tongues on Specification of Letters Patent.

' Patented Nov. 11, 1913.

Application fll ed December 29, 1911. Serial No. 668,513.

the sides of tooth 6, said tongues being pref-v erablyzwedge shaped and normally seating in correspondingly shaped seats 8, provided in body 3' on opposite sides of seat 4. By the tapered formation of tongue 7, shank 5 will be drawn firmly down to its seat, durQ ing mounting of the point.

By extending shank 5 rearwardly, as

shown, the rear end portion thereof can be engaged by one of the rivets 9, employed for securing the tooth to the shovel. In addition to said securing means I have shown a bolt 10 which is passed through the body 3' and shank 5 in proximity to the seats 8. -An undesirable feature in shovels as now constructed, resides in the open spaces between the shanks 1 which are spaced along the forward edge portion of the shovel, these spaces affording a means for lodgment of the excavated material. This is overcome by providing side extensionaas 11, on shank 1, the extensions of one shank abutting those on opposite sides thereof and having their forward end portions turned downwardly' as at 12.to direct the material upwardly from the bucket wall. These extensions therefore constitute a supplemental wall section for the bucket, and as such can be varied in form or arrangement without departing from the spirit of my invention as defined .in my annexed claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States of America 1s 1. In an excavator shovel or the like, in

combination with aplurality of teeth having shanks and arms spaced for reception of one edge portion of the shovel wall therebetween, supplemental wall sections for said shovel fixed to the shanks of said teeth and extending across the space therebetween over the upper face of the shovel wallto guard against lodgment of the excavated material between the teeth shanks, and securing means for said teeth passing through the shanks thereof and said shovel wall.

2. A tooth of the character described'having a shank and an arm spaced to normally receive therebetween one edge portion of the shovel wall, and an extension fixed to said shank and projecting from the side thereof to normally overlie the wall of the shovel and form a supplemental wall therefor adapted to guard against lodgment of the material between adjacent teeth.

3. In an excavator shovel or the like, in combination with a plurality of teeth having shanks secured along one edge portion of the shovel wall, side extensions on the shank of said teeth disposed substantially in the plane of the upper faces of such toothshanks and providing supplemental wall sections for the upper faces of the shovel extending entirely across the spaces between said tooth-shanks.

4. In an excavator shovel or the like, in combination with a plurality of teeth having shanks secured along one edge portion of the shovel wall, side extensions on the shanks of said teeth disposed substantially in the plane ofthe upper faces of such toothshanks and providing supplemental wall sections for the upper faces of the shovel extending entirely across the spaces between said tooth-shanks, the forward portions of the upper faces of said side extensions being inclined downwardly in-a forward direction.

5. A tooth of the character described having a shank adapted to be secured to the bottom wall of an excavator bucket, and a side extension on the shank of said tooth having its forward end port-ion directed downwardly, for the purpose specified.

6. A tooth of the character described having a shank adapted to be secured to the wall of an excavator bucket, and extensions on the opposite sides of the shank of said tooth. said side extensions having their forward end portions directed downwardly, for the purpose specified.

Signed at Seattle, Washington this 15th day of December 1911.

' MICHEL J. WOZNACK.

Witnesses:

. ARLITA ADAMS, CLARA HARM. 

